The root of a Alerts section shall be 'section' in the HL7 namespace. The Alerts section SHALL contain a narrative block. The alert section SHALL contain Section / code. The alert section SHALL contain Section / title. The Alerts section SHOULD include one or more problem acts (templateId 2.16.840.1.113883.10.20.1.27). Section / title SHOULD be valued with a case-insensitive language-insensitive text string containing “alert” and/or “allergies and adverse reactions”. A problem act SHOULD include one or more alert observations (templateId 2.16.840.1.113883.10.20.1.18).